SeaMonkey 2.11 Beta 4
* ⇓ character entity and similar symbols caused excessive line-spacing under GDI (avoid using Cambria Math for symbol fallback).
* Allow Flash to be be upgraded while SeaMonkey is running, part 2 (allow plugins that we previously considered duplicates to be loaded/registered. Prefer plugins with higher version numbers when picking a handler for content).
* Allow Flash to be be upgraded while SeaMonkey is running, part 1 (implemented NPN_ReloadPlugins for out-of-process plugins).